Question: What kind of pet has the least frequency of audible sound?
Paraphrase: What domesticated animal emits audible sound at the least frequency?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q502895 . ?ent wdt:P3387 ?obj . ?ent wdt:P366 wd:Q39201. } ORDER BY ASC(?obj)LIMIT 5